package sum;

import java.util.Scanner;

public class sum {
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        double sum = 0;
        for(int i = 0;i<10;i++)
        {
            sum+=sc.nextDouble();
        }
        System.out.println("sum = "+sum);
    }
}
